find who's current in some path

whoisat.sh

#!/bin/bash

if [ $# -ne 1 ]
then
    echo "Usage: sudo whoisat /path"
else
    path=$1
    for proc in $(ps aux | awk '/pts/ {print $2}')
    do
        ls -l --time-style=+'%F %T' /proc/$proc/cwd 2>/dev/null
    done | grep $path | awk '{print $3, $4, $6, $7, $8, $NF}' | column -t
fi

Rename with specification